Digital
Line Multiplexing Equipment Models IKM-6SL and IKM-6SL/8 (PCM/E&M)
Conformance Certificate
of MC, Russian Federation No.¾S/1-SR-777
The Equipment is intended for channels networking of connecting
lines of interstation links in rural networks by means
of digital multiplexing and transmission on cable, air
and radio relay links.
It is intended
for modernization and development of RTN (Rural Telephone
Networks), for equipment substitution models B-3-3 and KNK-12,
IKM-15, IKM-30 and others. Flexible configuration of the low-frequency
terminations provides transmission of VF channels and direct
subscribers.
 Features
of IKM-6SL:
- provides
transmission 6 channels E&M on one pair;
- line
code - TC-PAM16;
- length
of a regenerating section in cable 1x4x1,2,km – 22 km;
- maximum
quantity of distant supply regenerators – 4.
 Features
of IKM-6SL/8:
- provides
transmission 8 channels E&M on one pair;
- line
code - TC-PAM16;
- length
of a regenerating secton in cable 1x4x1,2,km – 22 km;
- maximum
quantity of distant supply non-served center - 4.
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Schemes of change of structure of the
equipment at replacement analog central
and terminal ATE for equipment IKM-6SL and IKM-6SL/8
The typical scheme of inclusion IKM
- 6SL(/8) in analog ATE
Cost
of the equipment:
- IKM-6SL
1 complete set 1 600 $ USD
- IKM-6SL/8 1 complete set 1 780 $ USD
The Scheme after replacement regional
(the central station) ATE on digital
APPLICATION:
After replacement regional analog ATE on digital which
has no analog channels it suggested to replace "Master"
IKM-6SL (/8) with the modem of stream E1 MK-30TC10 which will provide
connection to regional digital ATE on port E1 (G. 703) with workers
6-th or 8-th TS and accordingly in the speed from 512 up to 640
kBit/s.
Cost
of the equipment:
-
MK - 30TC10 1 half of complete set. 995 $ USD.
APPLICATION:
After replacement regional analog ATE on digital there is an opportunity
of connection of several (up to 5) terminal stations to one port
E1 central stations use of the multiplexer - converter MK-5, and
released "Master" half of complete sets IKM-6SL can be
transformed in "Slave" (by rearrangement of the crosspiece
on a parent payment) and to use them on other directions where till
now the out-of-date equipment is used.
Cost
of the equipment:
-
MK - 5 1 piece 3 415 $ USD
The scheme after replacement terminal
analog ATE on digital
APPLICATION:
After replacement terminal analog ATE on digital which has no analog
connecting lines it suggested to replace "Slave" half
of complete set IKM-6SL (/8) with the modem of stream E1 MK-30TC
which will provide connection to terminal digital ATE to port E
(G. 703) with workers 6-th or 8-th TS and accordingly in the speed
from 512 up to 640 kBit/s, or to transfer high-grade stream E1 (30
TS) and accordingly in the speed in a line 2048 kBit/s. For maintenance
of full stream E1 on the given direction it will be necessary to
put a regenerator of series NRP.
Cost
of the equipment:
-
MK - 30TC10 1 half of complete set 995 $ USD.
- NRP in the tight container 1 piece 1 120 $ USD
Technical Characteristics
of IKM – 6SL
| |
Quantity of channels |
| |
6 |
8 |
Coding
is PCM (Pulse Code Modulation) |
with use A-law ITU-I recommendations G.711 |
Line
code |
TC-PAM16 |
TC-PAM16 |
Length
of a regeneration sections, km |
|
For
copper twisted pair of cable S = 0,4 mm2 |
up to 6 |
up to 5 |
For
copper twisted pair of cable S = 0,5 / 0,7 mm2 |
8/11 |
7/10 |
For
copper twisted pair of cable S = 0,9 / 1,2 mm2 |
12/22 |
14/20 |
Air-loop
of communication |
33 |
30 |
Maximum
quantity of regeneration sections |
5 |
Power
of a signal in the line connection |
1,5 - 3 dB |
1,5 - 3 dB |
Characteristics
of interface |
|
Interface |
1 copper twisted pair of cable with attenuation
no more |
43 dB on frequency
70 kHz |
43 dB on frequency
90 kHz |
Type
of transmission |
full duplex |
Rate
of transmission |
512 kbps |
640 kbps |
Resistance
of a subscriber’s loop |
Up to 1,2 kOm |
Central
interface office |
|
Impedance |
600 Om |
FXO/FXS |
Reception/transmission (0 dB /-7 dB); 1 CAS
(Channel Associated Signaling), 2 CAS or SL (Subscriber
Loop) |
E&M |
Reception/transmission: -3,5 dB /-3,5 dB and
+4.3/-13 dB; 1 AAC, 2 AAC, 2600 Hz |
Quantity
of subscriber’s channels |
from 1 up to 6 |
from 1 up to 8 |
Type
of interface |
FXO/FXS SL |
Resistance
of a subscriber’s loop |
Up to 1 kOm |
Power
supply of system |
|
Battery
voltage in central office |
from 36 V up to 72 V |
Power
consumption |
No more 15 W to each system |
Protection
against battery pole change |
Yes |
Sound
and light signal system, losses of synchronization |
Yes |
Range
of working temperatures |
from +5 up to +40oÁ |
Dimensions
(W x D x H), weight: |
|
Central
equipment |
19 " x 70 mm, weight no more 3 kg |
Terminal
equipment |
19 " x 70 mm, weight no more 3 kg |
Normative Documentation
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